Not sure what your setup is exactly, but the way it works for me, is, I left click and drag to rotate around the cross hairs, and I right click and drag to move the cross hairs to a different location. There is also a reset button on the tool bar at the bottom of the 3d viewing window that will reset the cross hairs to the origin of the x,y,z, axes. Also middle mouse button scrolling will zoom in and out, and holding down the middle mouse button and dragging will move the cross hairs forward and back in the "line of sight" direction.
how do you lock the crosshairs to the center point of the axis? On my version of OpenSCAD, 2021.01, it moves around as I move the backgaround.
Not sure what your setup is exactly, but the way it works for me, is, I left click and drag to rotate around the cross hairs, and I right click and drag to move the cross hairs to a different location. There is also a reset button on the tool bar at the bottom of the 3d viewing window that will reset the cross hairs to the origin of the x,y,z, axes. Also middle mouse button scrolling will zoom in and out, and holding down the middle mouse button and dragging will move the cross hairs forward and back in the "line of sight" direction.